Differences in human intelligence have environmental and genetic causes.

人类智力差异的形成有环境和遗传两方面的原因。

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The evidence suggests that infectious disease is a primary cause of the global variation in human intelligence.

有证据表明，传染病是致使人类智力整体发生变化的决定性因素。

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Imagine, in a world where human intelligence is near the bottom of the ladder, what the world would look like even a short decade later.

在一个人类智能接近阶梯底部的世界里，就算是短短的十年之后世界会变成什么样，想象一下。

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" Why do different human groups differ in intelligence?"

为什么不同人群之间会有智力差异“

耶鲁公开课 - 心理学导论课程节选

Committee members want to know where Gates will come down in the long-simmering feud between the Pentagon and the CIA over who will control the nation's intelligence activities, in particular, human intelligence.

NPR: Gates Likely to Get Senate Nod, With Bruising

Twenty-seven-year-old U.S. Army Sergeant John McCary was serving in a HUMINT (Human Intelligence) Team attached to Task Force 1-34 Armor, 1st Infantry Division in the al-Anbar province of Iraq.

NPR: Sergeant Sorts Through War's Chaos in Letter Home

In 2006, John Gizzi reported in Human Events that the German intelligence service BND had confirmed that the 2005 terrorist bombings in Britain and the 2004 bombings in Spain were organized in Kosovo.

CENTERFORSECURITYPOLICY: Kosovo's stark warning